Abstract: A spot search device which searches, based on image data of pattern light, a moved spotlight representing any of the plurality of spotlights that has moved, the spot search device includes, a first movement amount generating unit which detects the moved spotlight and calculates a first movement amount based on first image data, a second movement amount generating unit which, based on the first movement amount and a distance, calculates a second movement amount of the moved spotlight in second image data; and a spotlight position predicting unit which, when a velocity and an area of the moved spotlight calculated from at least two pieces of frame image data satisfy reference values, detects the moved spotlight as a same object moved spotlight group and predicts a predicted moved spotlight position of the same object moved spotlight group in a next frame, based on movement information.